Why did the railroad companies hire immigrant workers from China and Ireland, as well as African Americans and Mexican Americans?(1 point)

Responses

A. Workers were scarce.
A. Workers were scarce.

B. The work was hard and dangerous.
B. The work was hard and dangerous.

C. The people were willing to work for low wages.
C. The people were willing to work for low wages.

D. All of the above
D. All of the above

E. None of the above

D. All of the above

Railroad companies hired immigrant workers from China and Ireland, as well as African Americans and Mexican Americans, because workers were scarce, the work was hard and dangerous, and these groups of people were willing to work for low wages.